Global Patent Index - EP 0104353 B1

EP 0104353 B1 19871028 - HEAT SENSITIVE RECORD MATERIAL

Title (en)

HEAT SENSITIVE RECORD MATERIAL

Publication

EP 0104353 B1 19871028 (EN)

Application

EP 83107344 A 19830726

Priority

  • JP 5404783 A 19830331
  • JP 15005282 A 19820831

Abstract (en)

[origin: EP0104353A2] A heat sensitive record material comprising a support sheet and a record layer formed on the support sheet, the record layer being composed essentially of a colorless or light-colored fluoran compound, an acidic substance which is thermally reactive with the fluoran compound to develop a color and a binder, characterized in that said record layer contains an effective amount of at least one benzenesulfonamide compound represented by the general formula:where R, is a hydrogen atom, a C<sub>1</sub>-C<sub>5</sub> alkyl group, an acetylamino group or a halogen atom, R<sub>2</sub> is a hydrogen atom, a C<sub>1</sub>-C<sub>5</sub> alkyl group, a cyclohexyl group or a phenyl group which may be substituted and R<sub>3</sub> is a C<sub>1</sub>-C<sub>5</sub> alkyl group, a cyclohexyl group or a phenyl group which may be substituted, provided R<sub>2</sub> and R<sub>3</sub> may form together with N a saturated ring.

IPC 1-7

B41M 5/26

IPC 8 full level

B41M 5/337 (2006.01)

CPC (source: EP US)

B41M 5/3375 (2013.01 - EP US)

Citation (examination)

  • none
  • Reports on the Progress of Applied Chemistry, volume 58(1975), pages148-152
  • Reports of the Progress of Applied Chemistry, volume 60(1976),pages 126-144

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

EP 0104353 A2 19840404; EP 0104353 A3 19850417; EP 0104353 B1 19871028; DE 3374190 D1 19871203; US 4482905 A 19841113

DOCDB simple family (application)

EP 83107344 A 19830726; DE 3374190 T 19830726; US 51193383 A 19830708